PitlaneXcode replacement for indie developers

Read an xcodebuild log as a list of errors

Paste the output of a build and get every error and warning with its file and line. The log stays in your browser.

Download for macOS (v1.1.1)

Pitlane building a project: the project list on the left, the build log on the right, and a menu to resolve packages and clear caches

Try it in your browser

The example below is already parsed. Paste your own log over it.

Build log

Command line invocation:
    /Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild -project MyApp.xcodeproj -scheme MyApp -destination "platform=iOS Simulator,name=iPhone 17 Pro" build

note: Building targets in dependency order
SwiftCompile normal arm64 /Users/you/MyApp/Features/Onboarding/OnboardingView.swift (in target 'MyApp' from project 'MyApp')
/Users/you/MyApp/Features/Onboarding/OnboardingView.swift:42:17: error: cannot find 'viewModel' in scope
                viewModel.start()
                ^~~~~~~~~
/Users/you/MyApp/Features/Settings/SettingsView.swift:118:17: warning: variable 'title' was never mutated; consider changing to 'let' constant
/Users/you/MyApp/Services/SyncClient.swift:76:13: warning: initialization of immutable value 'count' was never used; consider replacing with assignment to '_' or removing it
/Users/you/MyApp/Services/SyncClient.swift:76:13: warning: initialization of immutable value 'count' was never used; consider replacing with assignment to '_' or removing it
/Users/you/MyApp/Models/Trip.swift:9:8: error: type 'Trip' does not conform to protocol 'Decodable'
error: emit-module command failed with exit code 1 (use -v to see invocation)
** BUILD FAILED **

Why the log is hard to read

xcodebuild prints every step of the build: each compile command, each copy, each signing step. The lines you need are a handful among hundreds, and the same warning is often printed more than once.

What Pitlane does with it

Pitlane parses the output as it streams. Errors and warnings arrive as a list with the file and line, and a click opens Xcode at that line. An AI agent reads the same list over Pitlane's local API. The full log stays one click away.

Let your agent read the errors itself

Questions

How do I show only errors from xcodebuild?

Pass -quiet. The xcodebuild manual describes it as printing nothing except warnings and errors. The output is still plain text, so a list with files and lines needs parsing. This page does that, and Pitlane does it while the build streams.

Is my build log uploaded?

No. The page reads the log in your browser and sends nothing anywhere.

Which lines does it pick up?

Lines in the compiler's file, line and column format, and general error and warning lines such as a failed command or a linker error. Repeated lines are listed once.

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